DE3660342D1 - Voltage-dependent electric resistance (varistor) - Google Patents

Voltage-dependent electric resistance (varistor)

Info

Publication number
DE3660342D1
DE3660342D1 DE8686100376T DE3660342T DE3660342D1 DE 3660342 D1 DE3660342 D1 DE 3660342D1 DE 8686100376 T DE8686100376 T DE 8686100376T DE 3660342 T DE3660342 T DE 3660342T DE 3660342 D1 DE3660342 D1 DE 3660342D1
Authority
DE
Germany
Prior art keywords
varistor
layers
voltage
electric resistance
dependent electric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE8686100376T
Other languages
German (de)
Inventor
Gunter Dipl Ing Ott
Franz Dr Zettl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TDK Electronics AG
Original Assignee
Siemens Bauelemente OHG
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Bauelemente OHG, Siemens AG filed Critical Siemens Bauelemente OHG
Priority to DE8686100376T priority Critical patent/DE3660342D1/en
Application granted granted Critical
Publication of DE3660342D1 publication Critical patent/DE3660342D1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
    • H01C7/1006—Thick film varistors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
    • H01C17/06—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base
    • H01C17/065—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base by thick film techniques, e.g. serigraphy
    • H01C17/06506—Precursor compositions therefor, e.g. pastes, inks, glass frits
    • H01C17/06513—Precursor compositions therefor, e.g. pastes, inks, glass frits characterised by the resistive component
    • H01C17/06533—Precursor compositions therefor, e.g. pastes, inks, glass frits characterised by the resistive component composed of oxides
    • H01C17/06546—Oxides of zinc or cadmium
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
    • H01C7/102—Varistor boundary, e.g. surface layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
    • H01C7/105—Varistor cores
    • H01C7/108—Metal oxide
    • H01C7/112—ZnO type

Abstract

A voltage-dependent resistor or varistor is composed of a monolithic ceramic body made up of a plurality of layers of varistor material containing zinc oxide, alternating with layers of precious metal serving as coatings on the layers and which are alternatingly electrically connected to separate locations on the exterior surfaces of the body. The porosity of the layers of varistor material does not exceed 5%; the proportion of bismuth is at most 1 mol %; and the precious metal coatings include 50-80% by weight of palladium.
DE8686100376T 1985-01-17 1986-01-13 Voltage-dependent electric resistance (varistor) Expired DE3660342D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8686100376T DE3660342D1 (en) 1985-01-17 1986-01-13 Voltage-dependent electric resistance (varistor)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3501419 1985-01-17
DE8686100376T DE3660342D1 (en) 1985-01-17 1986-01-13 Voltage-dependent electric resistance (varistor)

Publications (1)

Publication Number Publication Date
DE3660342D1 true DE3660342D1 (en) 1988-07-28

Family

ID=6260071

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686100376T Expired DE3660342D1 (en) 1985-01-17 1986-01-13 Voltage-dependent electric resistance (varistor)

Country Status (5)

Country Link
US (1) US4675644A (en)
EP (1) EP0189087B1 (en)
JP (1) JPS61170005A (en)
AT (1) ATE35344T1 (en)
DE (1) DE3660342D1 (en)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3725455A1 (en) * 1987-07-31 1989-02-09 Siemens Ag ELECTRICAL MULTI-LAYER COMPONENT WITH A SINTERED, MONOLITHIC CERAMIC BODY AND METHOD FOR PRODUCING THE ELECTRICAL MULTI-LAYER COMPONENT
DE3725454A1 (en) * 1987-07-31 1989-02-09 Siemens Ag ELECTRICAL MULTI-LAYER COMPONENT WITH A SINTERED, MONOLITHIC CERAMIC BODY AND METHOD FOR PRODUCING THE ELECTRICAL MULTI-LAYER COMPONENT
DE3873206D1 (en) * 1987-07-31 1992-09-03 Siemens Ag FILLED LAYER COMPONENT WITH A SINTERED, MONOLITHIC CERAMIC BODY AND METHOD FOR THE PRODUCTION THEREOF.
JP2552309B2 (en) * 1987-11-12 1996-11-13 株式会社明電舎 Non-linear resistor
DE3930000A1 (en) * 1988-09-08 1990-03-15 Murata Manufacturing Co VARISTOR IN LAYER DESIGN
JPH077613B2 (en) * 1990-02-02 1995-01-30 東京電力株式会社 Suspended lightning arrester
GB2242065C (en) * 1990-03-16 1996-02-08 Ecco Ltd Varistor ink formulations
US5973588A (en) * 1990-06-26 1999-10-26 Ecco Limited Multilayer varistor with pin receiving apertures
GB2242068C (en) * 1990-03-16 1996-01-24 Ecco Ltd Varistor manufacturing method and apparatus
GB2242066B (en) * 1990-03-16 1994-04-27 Ecco Ltd Varistor structures
US6183685B1 (en) 1990-06-26 2001-02-06 Littlefuse Inc. Varistor manufacturing method
CA2051824A1 (en) * 1990-09-21 1992-03-22 Georg Fritsch Thermistor having a negative temperature coefficient in multi-layer technology
DE4030479C2 (en) * 1990-09-26 1993-11-25 Siemens Ag Electrical resistance in chip design
JP3121119B2 (en) * 1992-06-16 2000-12-25 ローム株式会社 Method of forming external electrodes of multilayer ceramic capacitor
JP2674523B2 (en) * 1993-12-16 1997-11-12 日本電気株式会社 Ceramic wiring board and manufacturing method thereof
JP3077056B2 (en) * 1996-09-12 2000-08-14 株式会社村田製作所 Multilayer electronic components
EP0883901A1 (en) * 1996-11-11 1998-12-16 Zoran Zivic MULTILAYER ZnO POLYCRYSTALLINE DIODE
US9054094B2 (en) 1997-04-08 2015-06-09 X2Y Attenuators, Llc Energy conditioning circuit arrangement for integrated circuit
US7321485B2 (en) 1997-04-08 2008-01-22 X2Y Attenuators, Llc Arrangement for energy conditioning
US7336468B2 (en) 1997-04-08 2008-02-26 X2Y Attenuators, Llc Arrangement for energy conditioning
US6444504B1 (en) 1997-11-10 2002-09-03 Zoran Zivic Multilayer ZnO polycrystallin diode
JPH11273914A (en) * 1998-03-26 1999-10-08 Murata Mfg Co Ltd Laminated varistor
US5999398A (en) * 1998-06-24 1999-12-07 Avx Corporation Feed-through filter assembly having varistor and capacitor structure
DE19903456A1 (en) * 1999-01-28 2000-08-10 Philips Corp Intellectual Pty Multi-component component
DE19931056B4 (en) 1999-07-06 2005-05-19 Epcos Ag Multilayer varistor of low capacity
JP3498211B2 (en) * 1999-12-10 2004-02-16 株式会社村田製作所 Multilayer semiconductor ceramic electronic components
US6717506B2 (en) * 2000-11-02 2004-04-06 Murata Manufacturing Co., Ltd. Chip-type resistor element
US20050212648A1 (en) * 2004-03-23 2005-09-29 Inpaq Technology Co., Ltd. Low-capacitance laminate varistor
US7630188B2 (en) 2005-03-01 2009-12-08 X2Y Attenuators, Llc Conditioner with coplanar conductors
DE102005028498B4 (en) * 2005-06-20 2015-01-22 Epcos Ag Electrical multilayer component
KR20130128403A (en) * 2010-11-03 2013-11-26 에프코스 아게 Ceramic multilayered component and method for producing a ceramic multilayered component
CN111718192B (en) 2012-12-27 2023-07-21 东莞令特电子有限公司 Varistor based on zinc oxide and method for manufacturing same
DE102015120640A1 (en) 2015-11-27 2017-06-01 Epcos Ag Multi-layer component and method for producing a multilayer component
DE102016104990A1 (en) 2016-03-17 2017-09-21 Epcos Ag Ceramic material, varistor and method for producing the ceramic material and the varistor
TWI667667B (en) * 2016-09-26 2019-08-01 立昌先進科技股份有限公司 Process for producing smd multilayer varistor to increase printing layres of inner electrode and smd multilayer varistor made by the same
US11545284B2 (en) * 2019-01-16 2023-01-03 Panasonic Intellectual Property Management Co., Ltd. Varistor assembly

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2736080A (en) * 1956-02-28 walker etal
US3235939A (en) * 1962-09-06 1966-02-22 Aerovox Corp Process for manufacturing multilayer ceramic capacitors
DE1282119B (en) * 1966-05-18 1968-11-07 Siemens Ag Process for manufacturing electrical components using the thin film method
JPS5823921B2 (en) * 1978-02-10 1983-05-18 日本電気株式会社 voltage nonlinear resistor
FR2523993A1 (en) * 1982-03-24 1983-09-30 Cables De Lyon Geoffroy Delore Silk screen printing paste contg. metal oxide(s) as active materials - used for varistor prodn.

Also Published As

Publication number Publication date
EP0189087B1 (en) 1988-06-22
JPH0353761B2 (en) 1991-08-16
EP0189087A1 (en) 1986-07-30
JPS61170005A (en) 1986-07-31
ATE35344T1 (en) 1988-07-15
US4675644A (en) 1987-06-23

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: EPCOS AG, 81541 MUENCHEN, DE